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Social can help fill the gaps insearch results Getting Social with Search

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Engines Use Social Signals“Yes, we do use [tweeted links and RTs] as a signal. It isused as a signal in our organic and news rankings ...” -Google “We do look at the social authority of a user. We look at how many people you follow, how many follow you, and this can add a little weight to a listing in regular search results….” – Bing Getting Social with Search